Split tongue?

[frost1375]

I just noticed one of my leopards has a slit on the very end of his tongue. I havn't read anything about this so I'm not sure if it's normal or not. The very end of his tongue is kind of split like a snake's tongue. Anyone know why this is? Thanks

 

[nevinm]

most lizards have that. works the same way a snakes does.

 

[moosassah]

Information provided from Dr. Gecko's site:
Like other reptiles, leopard geckos are equipped with a Jacobson' organ (vomeronasal organ) which is located in the roof of the mouth.
This sensitive organ will analyze molecules (part taste and part smell) that the gecko's tongue will have picked up when it was flicked in and out.
A gecko's primary sense is its vision, but the Jacobson's organ is used as a secondary sense.
To some people, it often appears as thought the gecko is tasting its environment.
The tongue is typically flicked when the gecko is out exploring, is curious about a particular item or even curious about a cage mate.
Leopard geckos will often tongue flick their food several times (especially new prey items) as they decide whether or not they want to eat it.